Q1 1. Interchange the battery and galvanometer and observe the effect. Explain your prediction and explain/justify your observation. 2. Obtain the resistance of an unknown resistor with the Wheatstone bridge and an Ohmmeter, which of these measurements is likely to be most accurate? Why? 3. If the voltmeter-ammeter method of determining resistance always has error due to current flowing through the meter or internal resistance in the meter, why is the Wheatstone bridge method better-it has a meter, too?

Q1 1. Interchange the battery and galvanometer and observe the effect. Explain your prediction and explain/justify your observation. 2. Obtain the resistance of an unknown resistor with the Wheatstone bridge and an Ohmmeter, which of these measurements is likely to be most accurate? Why? 3. If the voltmeter-ammeter method of determining resistance always has error due to current flowing through the meter or internal resistance in the meter, why is the Wheatstone bridge method better-it has a meter, too?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter12: Batteries And Other Sources Of Electricity

Section: Chapter Questions

Problem 14RQ: 14. A 6-V lead-acid battery has an A-hr rating of 180 A-hr. The battery is to be load-tested. What...

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